The purpose of the rotary paddle level switch is to detect the presence of solid/powdery material in most kinds of tanks, bins and containers. The unit is usually located through a bin wall at the top, middle or low level of a tank. During normal operation (no material present) a synchronous motor rotates the paddle at one RPM speed. When this paddle rotation is stopped by material movement, surrounding the paddle, motor will stall and cause the Micro-switch to change state (indicating an alarm or control).
Rotary Paddle level switch operating principle is simple. A unit is usually located through a bin wall at the top, middle or low level of a bin. During normal operation (no material present) a synchronous motor rotates the paddle at 1 RPM. When this paddle rotation is impeded by material, surrounding the paddle, motor will stall and cause the Micro switch to change state. (Indicating an alarm or control).
Housing : Die-Cast aluminum
Cable Glands : 13.5 PG Glands
Temperature : 0°C to 80°C
Power Consumption : 3 W (approx.)
Operating Voltage : 110-220 VAC/24 VDC
Output : 1 sets of Potential free contacts
Mounting : Threaded: 1¬" BSP/NPT, Flanged
Wetted Parts : SS 316 / SS 304
Switching Delay : 5 sec. (Covered, Uncovered)
Probe Length : 100 mm to 3000 mm (Insertion)
Rugged sealing ring prevents dust from infiltrating the housing body along the shaft.
Adjustable Torque - If the rotary paddle encounters overloading, the motor will automatically shut down the motor to prevent damage to the inner mechanisms and extend motor life.
Very suitable for small tanks and low density materials.